Pages
- 1
- 2
- document
-
Pinto Ribeiro, A. (author), Ferreira, Carlos (author), Casalino, D. (author)With distributed propulsion and electric vertical take-off and landing aircraft on the rise, fast and accurate methods to simulate propeller slipstreams and their interaction with aircraft components are needed. In this work, we compare results obtained with a filament-based free wake panel method to experimental and previously validated...journal article 2024
- document
-
Suys, T. (author), Hwang, S. (author), de Croon, G.C.H.E. (author), Remes, B.D.W. (author)We present a novel controller for fixed-wing UAVs that enables autonomous soaring in an orographic wind field, extending flight endurance. Our method identifies soaring regions and addresses position control challenges by introducing a target gradient line (TGL) on which the UAV achieves an equilibrium soaring position, where sink rate and...conference paper 2023
- document
-
Sharma, Suryansh (author), Simha, A. (author), Venkatesha Prasad, Ranga Rao (author), Deshmukh, Shubham (author), Saravanan, Kavin Balaji (author), Ramesh, Ravi (author), Mottola, Luca (author)UAVs are becoming versatile and valuable platforms for various applications. However, the main limitation is their flying time. We present BEAVIS, a novel aerial robotic platform striking an unparalleled trade-off between the maneuverability of drones and the long-lasting capacity of blimps. BEAVIS scores highly in applications where drones...conference paper 2023
- document
-
Mancinelli, A. (author), Remes, B.D.W. (author), de Croon, G.C.H.E. (author), Smeur, E.J.J. (author)Hybrid Unmanned Aerial Vehicles UAV are vehicles capable of take-off and landing vertically like helicopters while maintaining the long-range efficiency of fixed-wing aircraft. Unfortunately, due to their wing area, these vehicles are sensitive to wind gusts when hovering. One way to increase the hovering wind-rejection capabilities of hybrid...journal article 2023
- document
-
Chen, Siyuan (author), Zeng, Xiangding (author), Laefer, Debra F. (author), Truong-Hong, Linh (author), Mangina, Eleni (author)Imagery from Unmanned Aerial Vehicles can be used to generate three-dimensional (3D) point cloud models. However, final data quality is impacted by the flight altitude, camera angle, overlap rate, and data processing strategies. Typically, both overview images and redundant close-range images are collected, which significantly increases the...journal article 2023
- document
-
de Groot, Lucan (author), Xu, M. (author), Zuniga, Marco (author)We explore a new alternative for drones to gather information from sensors. Instead of using the traditional radio-frequency spectrum, whose broadcast nature makes it more difficult to poll specific objects, we utilize the light spectrum. In our system, the drone carries a light, and flies to an area that it is interested in polling. Only the...conference paper 2023
- document
-
Gawehn, M.A. (author)The aim of this study is to innovate wave-based depth-inversion towards smarter and faster algorithms to be used with various remote sensing instruments for broad community use. Wave-based depth inversion describes a branch of coastal remote sensing, which uses video recordings of a wave-field to derive depths and thereby create digital maps of...doctoral thesis 2022
- document
-
de Wagter, C. (author)Highly automated Unmanned Aerial Vehicles (UAVs) or "flying robots" are rapidly becoming an important asset to society. The last decade has seen the advent of an impressive number of new UAV types and applications. For many applications, the UAVs need to be safe, highly automated, and versatile. Safety is a prerequisite to allowing their use in...doctoral thesis 2022
- document
-
Bahnam, S.A. (author), de Wagter, C. (author), de Croon, G.C.H.E. (author)ROVIO is one of the state-of-the-art mono visual inertial odometry algorithms. It uses an Iterative Extended Kalman Filter (IEKF) to align features and update the vehicle state simultaneously by including the feature locations in the state vector of the IEKF. This algorithm is single core intensive, which allows using the other cores for other...conference paper 2022
- document
- de Croon, G.C.H.E. (author), de Wagter, C. (author) conference paper 2022
- document
-
van Wijngaarden, D.C. (author), Remes, B.D.W. (author)A type of UAV sharing the advantages of rotorcraft and fixed wing vehicles is the hybrid vehicle. Hybrid UAVs can take-off and land vertically and fly fast and efficient in forward flight due to the presence of a wing generating lift. However, combining the fixed wing and rotorcraft concept ends up in a multi-rotor with large dimensions when...conference paper 2022
- document
-
Schröter, S. (author), Smeur, E.J.J. (author), Remes, B.D.W. (author)Unmanned Aerial Vehicles (UAVs) have the potential to perform many different missions, some of which may require a large aircraft for endurance and a small aircraft for manoeuvrability in a building. This paper proposes a novel combination of a quadrotor and a hybrid biplane capable of joint hover, joint forward flight, and mid-air disassembly...conference paper 2022
- document
-
Vlaskin, A. (author), Sun, Junzi (author), Hoekstra, J.M. (author)The consumer drone sector is expected to grow rapidly in the coming decades. In Europe alone, some predictions show as many as seven million drones will be flying by 2050. This poses a challenge for surveillance. In this paper, we study an Automatic Dependent Surveillance system concept similar to the one for current aircraft surveillance, which...conference paper 2022
- document
-
Mancinelli, A. (author), Smeur, E.J.J. (author), Remes, B.D.W. (author), de Croon, G.C.H.E. (author)In the last few decades, the UAV research has been focusing on hybrid vehicles with Vertical Takeoff and Landing (VTOL) capabilities. Opposed to copters, hybrid vehicles are highly influenced by wind disturbances. This paper presents a novel quad-plane design that uses four dual-axis tilting rotors to enhance the wind rejection capability of...conference paper 2022
- document
-
Westenberger, Jelle (author), de Wagter, C. (author), de Croon, G.C.H.E. (author)Time-optimal model predictive control is important for achieving fast racing drones but is computationally intensive and thereby rarely used onboard small quadcopters with limited computational resources. In this work, we simplify the optimal control problem (OCP) of the position loop for several maneuvers by exploiting the fact that the...journal article 2022
- document
-
Krüger, Wolf R. (author), Meddaikar, M.Y. (author), Dillinger, J.K.S. (author), Sodja, J. (author), De Breuker, R. (author)This article presents the application of aeroelastic tailoring in the design of wings for a flying demonstrator, as well as the validation of the design methodology with flight test results. The investigations were performed in the FLEXOP project (Flutter Free Flight Envelope Expansion for Economical Performance Improvement), funded under the...journal article 2022
- document
-
Paladio-Hernandez, Alejandro (author), Salles, Paulo (author), Arriaga, Jaime (author), López-González, José (author)Sand spits are common in wave-dominated environments; with enough sand supply, they can evolve to affect circulation and navigation in channels or inlets. The focus of this paper is on the navigation channel of the Sisal Port, located on the northwestern Yucatan Peninsula (YP) coast, where a sand spit grew and was monitored from its formation...journal article 2022
- document
-
Zammit, C. (author)Unmanned Aerial Vehicles (UAVs) are being integrated into all spheres of life, for a wide range of application in civil, commercial and military applications in both indoor and outdoor environments. UAV onboard intelligence is a paramount requirement in the realisation of UAV Traffic Management System (UTM) and Air Traffic Management (ATM)...doctoral thesis 2021
- document
-
Hoekstra, J.M. (author), Ellerbroek, Joost (author)Purpose of Review A lot of research into decentralised, state-based conflict detection and resolution, or detect and avoid algorithms has been executed. This paper explains the essential properties of state-based conflict detection and reviews the work in the context of applications for not only manned but also unmanned aerial vehicles, where...journal article 2021
- document
-
van Wijngaarden, D.C. (author), Smeur, E.J.J. (author), Remes, B.D.W. (author)Rotorcraft, fixed wing and hybrid Unmanned Air Vehicles (UAV) each have applications in which they excel. Traditionally, dedicated autopilot control code is written to accommodate flight of each UAV type. This causes fragmentation of control code and may lead to performance differences or errors. In this paper, we propose to use the same INDI...conference paper 2021
Pages
- 1
- 2